How do I get Google CDN Interconnect discount using Cloudflare?

If you’re using Cloudflare and your website or application is hosted on Google Cloud Platform you can benefit from Google CDN Interconnect discount and save up to 75% on your bandwidth bill.

Customers egressing traffic to Cloudflare prefixes sourced from a GCP project within the same region (NA, EMEA, APAC) would get discounting applied automatically. The invoice item will have written similar to this: "Compute Engine Network Egress via Carrier Peering Network - Americas Based..."